Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Representative supraclavicular field. The ipsilateral common carotid artery (yellow) often is partially within the radiation field (45 Gray to ~50% of the volume in this example). The internal carotid artery (superior to the field border) is unlikely to receive the radiation dose in patients without positive supraclavicular lymph nodes.
